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Developer Tools · head to head

Jitsu vs Spline

Jitsu logo

Jitsu

Developer Tools

Open source event pipeline that streams behavioural data to your own warehouse

From
Free
Free plan
Yes
Visit JitsuFull review
Spline logo

Spline

Design

3D design tool for the web

From
Free
Free plan
Yes
Visit SplineFull review

The short version

  • Jitsu is an MIT-licensed alternative to Segment; Spline is a free 3D design software.
  • Free plans on both; paid from $99/mo and $9/mo.
  • Only Jitsu lists event collection; only Spline lists 3D modeling.
  • Where Spline falls short: AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks.
  • Prices and features on this page were last checked on 31 August 2026.

Where they differ

Only the attributes on which Jitsu and Spline actually diverge.

Attributes where Jitsu and Spline differ
AttributeJitsuSpline
Pricing modelPer month by event volumeFreemium
PlatformsWeb, Linux, Self-hosted, iOS, AndroidWeb, iOS, Android, VR and AR
CategoryDeveloper ToolsDesign

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for Jitsu.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Jitsu

  • Event collection
  • Warehouse destinations
  • Connector syncs
  • Transformations
  • Bundled ClickHouse
  • Event debugger
  • Self-hosting
  • Custom domains

Only in Spline

  • 3D modeling
  • Real-time collaboration
  • Animations
  • Interactions
  • Code export
  • React
  • Next.js
  • Webflow

What people use each for

The jobs each tool is most often brought in to do.

Jitsu

  • A team paying five figures a year to a customer data platform when all it actually does is send events to Snowflakenot Spline
  • An engineering group that needs event collection running inside its own VPC for data residency or security review reasonsnot Spline
  • A product analytics setup that wants raw events in the warehouse as the source of truth rather than trapped in a vendor toolnot Spline
  • A startup that needs first-party event collection on its own domain to reduce loss from tracker blocking without paying CDP pricesnot Spline

Spline

  • Web 3D experiencesnot Jitsu
  • Interactive prototypesnot Jitsu
  • Product visualizationnot Jitsu

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Jitsu

  • Jitsu is a pipeline, not a customer data platform, so identity resolution, audience building and reverse ETL are absent and a marketing team expecting Segment parity will be disappointed
  • Connector sync frequency is deliberately tiered, with the free plan limited to manual runs and one daily sync, so anything approaching operational freshness requires the paid plan or self-hosting
  • Self-hosting means you own the reliability of a system that drops data silently when misconfigured, and event loss is uniquely hard to notice because nothing errors, the numbers are just quietly lower
  • The connector catalogue is far smaller than Fivetran or Airbyte, so if your requirement is pulling from many SaaS sources rather than pushing events, Jitsu is the wrong half of the problem
  • It is a small company with a small commercial team, so enterprise procurement processes around security review, contractual SLAs and support escalation take longer than with an incumbent vendor

Spline

  • AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • Limited to simpler designs - not suitable for high-poly, detailed production models
  • Performance degrades with complex scenes containing many objects and materials
  • Limited non-Apple platform coverage compared to cross-platform design tools
  • Tutorials are either too fast for beginners or too basic for advanced users

Pricing, plan by plan

Jitsu

Free
  • Open SourceFree
    • MIT licence
    • Self-host on any cloud
    • No usage limits
  • Cloud FreeFree
    • Unlimited captured events
    • 200,000 active events per month
    • Manual connector runs only
  • Business$99/mo
    • 2,000,000 active events per month
    • $40 per additional million events
    • Hourly connector sync frequency
  • EnterpriseOn request
    • Custom event volume
    • One minute sync frequency
    • Unlimited active syncs

Spline

Free
  • FreeFree
    • Unlimited projects
    • Basic exports
    • Community support
  • Pro$9/mo
    • Advanced exports
    • Custom domains
    • Password protection
  • Team$19/mo
    • Team collaboration
    • Version control
    • Admin controls

Which should you pick?

Choose Jitsu if

  • You need event collection.
  • You want to start without paying.
  • You work on Web, Linux, Self-hosted, iOS, Android.
  • You also want warehouse destinations.
Jitsu review

Choose Spline if

  • You need 3d modeling.
  • You want to start without paying.
  • You work on Web, iOS, Android, VR and AR.
  • You also want real-time collaboration.
Spline review

Questions people ask

Is Jitsu or Spline better?
Neither clearly leads. Jitsu starts at Free and Spline at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Jitsu or Spline?
Jitsu starts at Free and Spline at Free.
Does Jitsu or Spline run on more platforms?
Jitsu runs on Web, Linux, Self-hosted, iOS, Android. Spline runs on Web, iOS, Android, VR and AR.
Can I use Jitsu for free?
Both have a free tier, so you can try either at no cost before committing.
What is Jitsu best used for?
Jitsu is most often used for a team paying five figures a year to a customer data platform when all it actually does is send events to snowflake, an engineering group that needs event collection running inside its own vpc for data residency or security review reasons, a product analytics setup that wants raw events in the warehouse as the source of truth rather than trapped in a vendor tool, a startup that needs first-party event collection on its own domain to reduce loss from tracker blocking without paying cdp prices. Of those, a team paying five figures a year to a customer data platform when all it actually does is send events to snowflake and an engineering group that needs event collection running inside its own vpc for data residency or security review reasons are not what Spline is typically brought in for.
What can Jitsu do that Spline cannot?
Jitsu covers Event collection, Warehouse destinations, Connector syncs, Transformations. Spline covers 3D modeling, Real-time collaboration, Animations, Interactions.

Answered from the vendors’ own pages

Jitsu: Is Jitsu the same as Jitsi?

No. Jitsu is an open source event data pipeline. Jitsi is an unrelated video conferencing project.

Spline: What is Spline's pricing?

Spline offers a Free plan with watermarked web exports, Starter at $12/month (billed annually) removing watermarks, Professional at $20/month with unlimited projects, and Enterprise with custom pricing. Viewers are unlimited on all plans.

Source
Jitsu: Can I self-host for free?

Yes. The project is MIT licensed with no usage limits when self-hosted.

Spline: Can Spline export 3D models to other tools?

Spline's export/import format support is more limited compared to traditional 3D tools like Blender. It focuses on web-first exports and native app code generation.

Source
Jitsu: How does the cost compare with Segment?

The Business plan is 99 US dollars a month for two million active events, where a per-tracked-user CDP typically costs orders of magnitude more at comparable volume.

Jitsu: Does Jitsu do identity resolution?

No. It transports and transforms events; identity stitching and audiences are not part of the product.

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